Before Becoming Yours

Sana and her boyfriend agreed to give their virginities to each other over the weekend, when they have his house for themselves. The day before, Sana goes to a party at a friend’s house and gets a bit drunk.
Turns out her friend wanted to fuck for a while now, and now an opportunity fell to his lap.

Back where it all began, Ichiro pays the unsatisfied housewife Shoko another visit. Upon spotting her Shoko's old high school uniform, he gets a fun idea. Using hypnosis to regress her mind back when she was sixteen, he makes her forget about her husband, and convinces her to give him her "virginity", as well as to bear his child.